1,As the built-in device generating electricity without the battery and any other power connets to water, LED will emit the light. 2,The light can change one color every 3 to 5 seconds so that the rainbow colors are showing gradually. 1,As the built-in de ...

Bus LED Display High Resolution Bus LED Display 5mm; 5500 nit Features: High Brightness. Enable to reach 6500 nit by using high intesity outdoor LEDs to make sure brighter and clear enough under directly sunlight. Safe, Reliable and Stable LED panel testin ...